Knowledge, FJ40 LAND CRUISER
1F TOYOTA LAND CRUISER ENGINE BLOCK, CYLINDER HEAD & INTAKE MANIFOLD – SPOTTERS GUIDE
SPOTTERS GUIDE:
1F TOYOTA LAND CRUISER ENGINE BLOCK
2-Port / 3-Port Coolant Port CYLINDER HEAD
1F / 2F INTAKE MANIFOLD
We are stoked to hear that some of you are converting your 1958 – 1974 1F powered Toyota FJ40 Land Cruiser to electronic fuel injection now that we have our 1F Sniper EFI Modification accessories. But on a couple occasions, a customer made his parts purchase only to find out that what he really had under the hood of his new to him 1969 – 1974 FJ40, was an 2F engine from an 1975 + 2F powered FJ40. We’ve also seen same scenario with a 2F swapped into an early FJ40, but still retained the 1F manifold instead of a 2F manifold. Yes, they are different and yet, these manifolds are interchangeable. But just because they are interchangeable does not mean that you want a 1F manifold on your 2F engine.
So, we wish to help you spot the key elements that will quickly tell you if in fact that your Land Cruiser is equipped with a 1F Toyota Land Cruiser engine, 1F intake manifold and 1F cylinder head.
For this particular 1F engine setup we are showing you around what is technically an F.5 or “F-and-a-half” which came in 1973 – 1974 model FJ40 Land Cruisers. So lets start at the top with the intake manifold.
1F INTAKE MANIFOLD
Five elements will signal that you have a 1F intake manifold:
• 3 Mounting Bosses; Oil Filter Housing
• 2 Bung Casting; blank bung & Port for Manifold Vacuum
___________________________
CYLINDER HEAD
This cylinder head number is 60051 from an F.5 (F-and-a-half) engine from 1973 to 1974, but based on the number chart below one might consider this head a pre-1969 head? Maybe what we are seeing is Toyota used one set of part numbers for the factory parts and another set of numbers for replacement parts. We are not sure! If you have any info on the above part numbers as to actual manufacture dates, please email us at: info@redlinelandcruiosers.com – subject: “Toyota Part Number Research”
11101-60030 (dates ????????)
11101-60031 (dates ????????)
11101-60051 (dates 1973/4 ????????)
If you have any info on the above part numbers as to actual manufacture dates, please email us at:
info@redlinelandcruiosers.com – subject: “Toyota Part Number Research”
Toyota “Replacement” Head Numbers:
11101-60074 (04/1972 – 08/1972)
11101-60090 (09/1972 – 08/1973)
11101-60091 (09/1973 – 12/1974)
11101-61030 (01/1975 – 01/1976)
11101-61020 (02/1976 – 07/1976)
11101-61031 (08/1976 – 06/1980)
11101-61040 (08/1980 – 08/1983)
The below images should help you spot where to look to find your F-Series cylinder head model number.
___________________________
2-Port / 3-Port Coolant Ports on Cylinder Head for EFI Temp Sensor.
___________________________
ENGINE BLOCK
On the driver side of the 1F engine blocks (F120, F130, F145, F155), you will see the extruded provision for the External Oil Pressure Regulator.
This particular F-Series engine block is the F.5 / F.1/2 as Toyota transitioned to an internal Oil Pressure Regulator, thus sealing up the through-hole and bolt intrusions.
___________________________
ENGINE MOUNTS
F-Series Engines use 10mm X .125 engine mount bolts. 2F engines are 12mm X .125
SERIAL NUMBER
F-Series Engine block serial number typically start at “5XXXXX”
LUBRICATING SYSTEM FSM: HOW TO TROUBLE SHOOT FJ40 / F ENGINE – TOYOTA LAND CRUISER
1F / 2F Manifold Prep for Carb or Sniper – Save An F-Series Toyota Engine
2F SNIPER 101 – WHERE TO START FOR YOUR FJ40 TOYOTA LAND CRUISER EFI CONVERSION?
